Exxon Mobil was the most profitable company last year by far, raking in $39.5 billion in earnings. Who else made the top 20?

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1. Exxon Mobil

The oil giant racked up $39.5 billion in earnings last year, the largest-ever profit in U.S. history. That figure topped the previous record of $36.1 billion, also set by Exxon
Mobil, in 2005. Profits were up 9.3% from the previous year, while sales rose 2.2%.